baber/WOPTO huggingface dataset:
Patent GB-800132-A (GB)
Title: Improvements in turret lathes
IPC: B23B3/18
Filed: 1955-04-23
Abstract: 800,132. Automatic turret-lathes. BROWN & WARD (TOOLS), Ltd., and KENDALL, F. W. March 27, 1956 [April 23, 1955], No. 11778/55. Class 83 (3). An automatic turret-lathe has a divided cam drum comprising a first rotating member with cams for the feed movement of the turret and a second rotating member, coaxial with the first, with cams for retracting and indexing the turret, independent drive means being provided for the second rotating member operative only during the withdrawal and indexing movements, the second rotating member being driven in part by the first rotating member to bring it into timed relation in the sequence of operations for effecting the next turret and indexing movements. The feed cam drum 1, Fig. 1, is keyed to a constantly rotating shaft 3, while a cam drum 4 for the rapid-return movement of the turret slide rotates freely on this shaft. The first cam drives the second cam through abutments 6, 7 when no fast movement is taking place. A sleeve 4b connected to rotate with the cam 4 has cams 8, 8a for operating a lever 9, Fig. 4, which, through a gear segment 10 and pinion 11, indexes the three-position turret through known mechanism. Three gear segments 14, Fig. 2 (equal in number to the turret faces), are secured to the sleeve 4b, and as the cam drum 4 is rotated slowly by the cam drum 1 during feed movement, each gear segment is brought in turn against a worm 15, keyed to a cross-shaft 16 but slidable thereon against a spring 18 between limit collars 17. The shaft 16 is driven by an electric motor which is switched in automatically by a lever 20 controlled by cam pieces 19 fixed adjacent the gear segments. As each gear segment 14 engages the worm 15 the high-speed motor is switched in, the cam 4 overruns the cam 1 and effects a quick-return of the limit slide, while cams 8, 8a effect a rapid indexing of the turret. Brakes.-A friction device is provided to steady the motion of the cam drum 4, and a friction brake 21, operated by the lever 20, stops the shaft 16 and motor when this is switched off.
Patent GB-683916-A (GB)
Title: Discharge device for finely divided fibrous material from a pressure system
IPC: D21C7/08
Filed: 1950-05-11
Abstract: 683,916 Digesters. AMERICAN DEFIBRATOR, Inc. May 11, 1950 [May 26, 1949], No. 11789/50. Class 64 (i) Relates to devices for continuously discharging finely divided fibrous materials from a pressure system, such as the system shown in Fig. 1. According to the invention, the device comprises a casing 211, Fig. 2, having stationary liners 217a, 218a, which cooperate with spaced rotatable members 217, 218 to define a discharge passage, the rotatable members being axially adjustable with respect to the liners so as to vary the width of the passage between them. In the construction shown, wood chips fed to a hopper 12, Fig. 1, are conveyed by a screw conveyer 14 to a cylinder 16 where they are compressed and fed as a plug to a receiver 32 which is under the pressure of steam supplied at 56, 58. A conveyer 38 feeds the chips between fixed and rotating cutter discs 42, 44, and the resulting fibrous material passes through a conduit 210 to the device shown in Fig. 2. The conduit shown has a nozzle 212 which concentrates the stream of fibrous stock into a jet which impinges on the pointed end of member 217. The two members 217, 218, have knurled surfaces and are also grooved longitudinally. The shaft 213 on which they are mounted rotates in thrust bearings 214 carried by supports 215, and the latter are carried by a plate 230 which can be adjusted lengthwise of a fixed channel 232 by a screw device 234 actuated by a handle 235. The shaft and bearings can move as a whole towards the right, against the action of a spring 238, to enable any foreign object to pass between the liners and rotatable members and to pass thence to the outlet 228. Specifications 393,159, [Group VIII], and 570,865 are referred to.
Patent GB-1500031-A (GB)
Title: Control apparatus for machine tools
IPC: B23Q5/00
Filed: 1975-03-21
Abstract: 1500031 Grinding machine control TOYODA-KOKI KK 21 March 1975 [17 May 1974] 11966/75 Heading G3N A control system for a grinding machine positions a tool support 1 at a start position settable with respect to an original position. Support 1 carries a grinding wheel 2 towards workpiece W using reversible stepping motor PM and feed screw 3. A dressing head 8 is movable across the wheel width and carries dressing tool 7. Detector 9 senses when support 1 reaches an original position. Initially manually operated pulse generator 18 feeds pulses to terminal F of drive circuit 14 to move the support towards a finish position where the workpiece W is ground to a predetermined finish size. When this is completed, generator 18 is stopped and thus the support 1 stops. Thereafter the feed L1 of support 1 in normal grinding cycles is set digitally in circuit 19 and switch LS depressed to enter this in up/down counter 17 and display 21. When switch BS for returning support 1 is depressed, bi-stable 26 causes control circuit 10 to retract support 1 and reduce the contents of counter 17 till they are zero. Counter 17 zero terminal output then resets bi-stable 26 and stops the support. Manually operated generator 18 is again operated to move support 1 back to the original position and actuage detector 9. Then the distance L2 between the start and original positions is displayed. Thus when L2 is set in circuit 37 and switch RS is depressed to set bi-stable 29, counter 17 is reset and zero is displayed. The support is advanced and counter 17 incremented, its output being compared with the distance L2 set in circuit 37 till equality occurs. When the wheel cutting ability is reduced, switch DS is pressed to supply a dressing command to circuit 10. A position compensation command ensures that the wheel support is moved by a distance equal to the dressing amount to keep L1 constant, the compensation being stored in memory 47. Thus various workpieces can be ground using constant grinding cycles. If an emergency wheel stop is made, switch RS is depressed and the support returns to its original position.
Patent GB-474057-A (GB)
Title: Improved process for the production of high-grade mineral lubricating oils
IPC: C10G25/06
Filed: 1936-04-27
Abstract: Mazut or its distillates are refined to high grade lubricating oils by mixing with such a quantity of adsorbent as to produce a homogeneous powder, and extracting the oils by solvents which do not dissolve the adsorbed impurities.  Treatment with basic compounds, e.g. metal oxide, hydrate, or carbonate to neutralize naphthenic or other acidic bodies may precede, follow, or accompany the refinings. The products may be fractioned, and the extraction may be in stages using the same or different solvents. Solvents specified are liquefied petroleum gases, gasolene, and benzine.  Adsorbents specified are natural or activated bleaching earth, fuller's earth. Floridine, Bentonite, infusorial earth, and diatomaceous earth, active carbon, and silica gel; they may be regenerated and re-used, the adsorbed compounds being extracted therefrom by chloroform, benzene, benzene-alcohol, pyridine, carbon tetrachloride, or carbon disulphide.  In one example, a Roumanian petroleum residue is neutralized by treatment with 5 per cent of calcium oxide, shaken and triturated warm with 150--200 per cent of hydrosilicate, and extracted, the extract being separated by filtering or centrifuging.
Patent GB-228407-A (GB)
Title: Improvements relating to sectional boiler headers
Filed: 1924-05-16
Abstract: 228,407. Imray, O. Y., (Heine Boiler Co.). May 16, 1924. Steam generators.-Sectional boiler headers are produced by arranging a heated tube in a die and then expanding successive lengths of the tube progressively into engagement with the die bv the use of sand or other non-compressible filling medium. The tube is placed in a die A supported on a table B that can be raised by hydraulic mechanism 5, 5<a> and supported in the acting position by a cylinder 3 filled with sand through a pipe 13. By releasing the valve 9 and allowing the sand to escape, the table can be lowered as desired. Successive lengths of the tube are filled with sand through the pipe 11 and the tube is deformed progressively to fit the die by the plunger C which is reciprocated by a steam cylinder 15 and spring 16. By proper setting of the valve 9 and the feed through the pipe 11, the operation may be made continuous. The die is carried on eccentrically-mounted rollers for transport, the rollers being raised to allow it to rest flat on the table in the acting position. Fig. 3 shows one form of die in which the tube x is surrounded by pairs of members 23, 24 bolted together at 25, 26.
Patent GB-112903-A (GB)
Title: Improvements in or relating to Toys, Kindergarten Appliances and the like.
Inventor: MATHEWS THOMAS
IPC: A63H33/42
Filed: 1917-08-24
Abstract: 112,903. Mathews, T. Aug. 24, 1917. Pictures.-Relates to a folding model or picture which can be expanded or folded by a single movement. Fig 1 shows in perspective and Fig. 2 in plan a model of a railway station constructed according to the invention. The device consists primarily of vertical members 1, 2, 6 and a horizontal member 4 hinged at 5 to the member 2. Wings 3 hinged to the part 2 are connected by strips 8 to the part 6, the latter fitting in slots in the part 4. A folding roof 10 and an inclined piece 11 are connected to the parts 1, 6. Pieces representing signals, a train &c. may be used in connexion with the device. The model is folded flat by raising the horizontal part 4 on its hinge 5. Other designs may be constructed on the same principle, and in the case of a house a base representing a garden may be added and the subsidiary pieces represent trees, borders, &c.
Patent GB-706889-A (GB)
Title: Improvements in or relating to apparatus for and method of making glass
IPC: C03B5/24
Filed: 1952-05-13
Abstract: 706,889. Glass melting furnaces. EMHART MANUFACTURING CO. May 13, 1952 [Nov. 10, 1951], No. 12146/52. Class 51 (2) A continuous glass melting furnace of limited capacity comprises a melting tank C 20-40 feet long and not more than 8 feet wide, the ratio of length to width being always within the limits 4:1 and 7:1, a doghouse 5, a conditioning tank 16, and gas or liquid fuel fired burners 34 disposed in the side walls 2 and so controlled as to give a maximum temperature near the conditioning tank dropping to a minimum in front of the doghouse. The burners 34 are disposed in ports 33 in the walls 2 and are supplied with an air/fuel mixture through pipes 35 provided with valves 36 controlled by handles 37, which after being pre-set to provide the aforementioned temperature gradient are operated together by cables 38 and 39 connected to counterweights 45 and 45' respectively at their outer ends and to pneumatic motors 41 and 41<SP>1</SP> respectively at their inner ends. The motors 41 and 41<SP>1</SP> are subject to control by thermocouples in the furnace roof through known controllers. A batch charger 30 of the type disclosed in Specification 667,337 at each stroke impels glass on the surface of the bath forwardly, enclosing a portion of batch material therein, and tending to counteract a rearward convection current on the bath surface.
Patent GB-1347220-A (GB)
Title: Frequency responsive multi-phase pulse generator
Inventor: DYER G
IPC: H03K5/15
Filed: 1972-03-16
Abstract: 1347220 Pulse delay circuits NORTH AMERICAN ROCKWELL CORP 16 March 1972 [30 April 1971] 12211/72 Heading H3P [Also in Division D1] In a circuit for producing pulses suitable for effecting operation of a rotary knitting machine at a desired point in the cycle which is independent of the speed, which pulses are delayed with respect to transitions of a variable frequency input signal, the transitions are used to initiate a pulse having a width varying with the frequency and these pulses together with the signal are fed to a bi-stable circuit to provide the delayed pulse. Pulses having a phase delay independent frequency may thus be obtained. As shown, a clock signal A is supplied to a transition detector 10 providing a pulse at each positive and negative going edge of the pulse. These trigger a monostable multivibrator 14. The pulses are also applied to an "electric tachometer" 12 which produces a control voltage proportional to frequency and this is used, via control circuit 16, to vary the timing circuit of the multivibrator so that its output pulse width varies inversely with frequency. The trailing edge of these pulses trigger a bi-stable circuit 48 to a state which depends upon the erect and inverted clock inputs at its J and K terminals and the edges of the respective Q and Q outputs operate monostable circuits to produce the desired output pulses. The transition detector may be a pair of monostable multivibrators responsive respectively to leading and trailing edges of the clock, the outputs being combined in an AND circuit. The "electronic tachometer" 12 may be a monostable circuit followed by an averager (Fig. 3, not shown).
Patent GB-310010-A (GB)
Title: Improvements in or relating to automatic valves
IPC: F16K31/122
Filed: 1929-04-19
Abstract: 310,010. Skoda Works, Plzen. April 19, 1928, [Convention date]. With packing device acting at end of stroke, or when apparatus is at rest.-The actuating piston of a valve is provided with a valve-like sealing surface adapted to engage a corresponding seat on a ring 7. The ring is supported in a groove in the casing by a layer of elastic packing material 8 such as is known under the Registered Trade Mark " Klingerit " and is held against displacement without being rigidly fixed by bolts 9.
Patent GB-458747-A (GB)
Title: Improvements in stabilizing equipment for ships
IPC: B63B39/14
Filed: 1935-04-23
Abstract: 458,747. Stabilizing ships. ROCARD, Y. A., 120, Rue d'Assas, Paris. April 23, 1935, No. 12217. [Class 113 (i)] In a stabilizing system for ships the stabilizing couple which counteracts rolling is provided by an automatic control device which ensures that the couple is composed of three terms the first of which is substantially equal and opposite to the rolling couple and the second and third are functions of the rolling angle and its time derivatives. The rolling couple operating on the ship is measured by manometers arranged on either side of the ship whilst the rolling angle is measured by a gyroscope 12. These two valves converted into electrical terms are applied as voltage, to a stabilizing plant in which the pumps 24, 24<1> finally supply the stabilizing couple. The voltage delivered by the gyroscope 12 is applied to a thermionic valve 25 in the plate circuit of which are arranged a resistance 27 and inductance 26 so proportioned that the voltage arising at the output terminal of the valve is a time integral of the input voltage. The voltage applied by the manometers 1-3, 1<1>-3<1> is applied to the input of the valve 25<1>. The combined voltage is applied to an amplifier 31 which controls the output of the pumps 24, 24<1>. A device 32 may be provided to adjust the amplification ratio of the amplifier 31. A condenser form of manometer is described in which the elements comprise the diaphragm 37, Fig. 8, inserted in the ship's side and the fixed armature 38.
Patent GB-593097-A (GB)
Title: Improvements in and relating to poly-n-vinyl carbazole products
IPC: C08L39/04
Filed: 1945-05-15
Abstract: Improved polymers of N-vinyl carbazole are produced by adding to a solution of commercial poly N-vinyl carbazole in benzene or trichlorethylene sufficient methyl alcohol to precipitate a polymer 85 per cent by weight of which has a relative viscosity in 2 per cent benzene solution of not less than 4 and no part of which has a viscosity of less than 3.25.  Preferably, the polymer is prepared by polymerization in trichlorethylene at a temperature not above 0 DEG C. and in the presence of a polymerization catalyst, e.g. a compound of boron fluoride and diethyl ether, and the solution of polymer is diluted to 5 per cent by addition of trichlorethylene before addition of methyl alcohol.  The poly N-vinyl carbazole produced is suitable for the manufacture of films and sheet materials adapted for use as spacing and dielectric in electric capacitors.
Patent GB-252178-A (GB)
Title: Improvements in automatic brake shoe adjusting apparatus
IPC: B61H15/00
Filed: 1926-05-12
Abstract: 252,178. Engels, R. May 18, 1925, [Convention date]. Compensating for wear.-Relates to automatic brake-shoe adjusting apparatus in which the length of a member of the brake gear is varied by means of a pawl and ratchet gear to compensate for wear of the brake shoes. Between the element adjusting the length of the member and the pawl and ratchet gear is interposed a spring which is wound up due to the resistance in this element until its tension is sufficient to overcome this resistance. As shown in Fig. 1, the brake apparatus comprises a cylinder 1 and piston rod 2 operating pull rods 10, 11 through levers 3, 5 connected by a link 7. The adjusting mechanism is interposed in the) pull rod 10 and is operated by a, link 12 connected to the end of the lever 3 and to a bell crank 14 pivoted on the end of the lever 5. The adjusting mechanism comprises a sleeve 18, Fig. 2, having a female thread engaging a screw-threaded part of the pull rod 10. This sleeve is revolubly mounted on a journal pin 19 carried by an arm 22 pivotally connected to the lever 5. On operation of the brake, the bell crank 14 after idle movement operates an arm 28 on a pawl carrier 21 revolubly mounted on the pin 19. This pawl carrier, by means of a pawl 25, turns a ratchet wheel 20 also revolubly mounted on the pin 19 and thus winds up a spring 29 fixed to the ratchet wheel and the sleeve 18. On releasing the brakes, the ratchet wheel is arrested by a pawl 23 supported on the bracket 22 and under the action of a. counter-weight the pawl carrier 21 turns back until an abutment thereon strikes a stop 24. An arm 16 on the bell crank 14 may assist this return movement. In the inoperative position, a small interval is left between the pawl 25 and the next tooth to secure the movement of the ratchet wheel with certaintv. In a modification of the invention in which the adjusting mechanism is interposed in the link 7, the bell crank 14 is formed as a double-armed lever pivoted at 31 and is operated by a link connected to a bell crank pivoted at 4 and connected by a further link to the cylinder 1. The arm 22 is mounted to turn freely on the pin 19 and is connected by a link with an extension of the pull rod 11. The Specification as open to inspection under Sect. 91 (3) (a) comprises also a modified adjusting mechanism, Fig. 4 (Cancelled), in which a friction disc 34 connected to the ratchet wheel 20 is clamped by a spring 35 between a shoulder on the sleeve 18 and a shoulder on a sleeve 44 mounted on the pin 19. The ratchet wheel turns the sleeve 18 by means of the friction disc until the tension in the brake gear overcomes the spring 35 and releases the friction disc. A pawl for locking the ratchet-wheel is not necessary in this case. This subject-matter does not appear in the Specification as accepted.
Patent GB-611161-A (GB)
Title: Improvements in differential steering-gear for the control of tractor caterpillars
IPC: B62D11/08
Filed: 1946-04-23
Abstract: 611,161. Steering-differential. ETABLISSEMENTS RICHARD FRERES, SOC. A R.L. April 23, 1946, No. 12300. Convention date, March 11, 1944. [Class 80 (ii)] To permit reduction in size due to higher rotational speeds of a controlled differential steering-gear in a track-laying vehicle, the gear drives each track-sprocket 14a through epicyclic reduction-gear 12a. The steering-differential comprises steering-brakes 7a on freely-mounted suns 8a engaging pinions 9a on the shafts of interengaging planets 4a, 4b in a bevel-driven carrier 3, and meshing driven suns 5a, 5b. The latter are each fast with driving suns 10a of the epicyclic reduction-gears which have permanently fixed ring-gears 12a and driven planetcarriers 13a secured to the usual spur-reducing pinions 15a driving the track-sprockets 14a.
Patent GB-1262809-A (GB)
Title: A coin-operable machine for automatically withdrawing a cone wafer from a cone store and filling the wafer with creamy ice-cream
Inventor: SIMONICH MARIO
IPC: G07F13/10
Filed: 1970-03-16
Abstract: 1,262,809. Coin-freed vending apparatus. M. SIMONICH. 16 March, 1970 [11 June, 1969], No. 12472/70. Heading G4V. [Also in Division A4] The cone wafers in an ice cream vending machine are stored in six containers 7 between discs 5, 6, the circumference of disc 6 being toothed so that the whole magazine may be rotated about vertical shaft 4 by pinion 13. The cones 8 are stored mouth downwards, the lowest cone in each stack being supported by contact between its rim 22 and plates 15, 21. Plate 15 is in the form of an almost complete annulus, with a sloping portion 16 at one side of the gap. On insertion of a coin or manual operation of a push-button an electric motor is energized to rotate the magazine through pinion 13 and the coin slot is closed. (If sensor 17 is not pressed, due to the absence of cones in the container adjacent to plate 16 a warning light is lit and the coin slot closed to prevent an initial insertion of a coin). The cones 8 disposed in the container adjacent to plate 16 move downwards as the container rotates over the sloping plate and when the gap in the supporting plates is reached the lowermost cone falls through, the next lowermost cone being supported by plates 15, 21. The rotation is then stopped when pin 9 strikes lever 10 provided the falling cone has previously struck sensor 23; should no cone have fallen, e.g. due to the absence of cones in one container, rotation of the magazine continues until a cone is dispensed from a succeeding container. The falling cone rebounds off hook 40 to enter shoot 41 point first and then comes to rest in cradle 42. The striking of sensor 23 also actuates motor 52 to rotate pulley 50 and so cause the cradle to travel up rods 43 until the cradle strikes sensor 46 which switches off motor 52 and energizes motor 53 to return the cradle to its lower position. As the cradle strikes sensor 46, door 54 strikes spoke 56 and pivots about 55, thereby releasing the cone to slide down shoot 57 and enter support ring 60 after having struck sensor 58. Sensor 58 operates a timer circuit which controls the starting and stopping of an ice cream dispensing apparatus.